Webby sets out to prove to a homesick Penumbra that Earth can be a lot of fun by riding Glomgold's newest gift to Duckburg, the suspicious Flintferris Glomwheel.

Scrooge and Goldie O'Gilt are turned into teenagers as they race Rockerduck to the Fountain of Youth, while the boys' sibling rivalry uncovers danger at a spring break hotel.